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Showing results 31 to 40 of 162344

  • Photophysical and photochemical behaviour of metallophthalocyanines : effect of nanoparticles and molecules of biological importance
    Idowu, M.A., 2009
    Syntheses, spectral, photophysical and photochemical studies of some neutral, anionic and cationic metallophthalocyanine derivatives are presented. The effects of central metal ions, solvents, aggregation, surfactant, nanoparticles and bovine serum albumin on the photophysical and photochemical beha ...
  • The role of acute toxicity data for South African freshwater macroinvertebrates in the derivation of water quality guidelines for salinity
    Browne, Samantha, 2005
    Water resources are under ever-increasing pressure to meet the demands of various water users both nationally and internationally. The process of anthropogenically-induced salinisation serves to exacerbate this pressure by limiting the quantity and quality of water available for future use. Water qu ...
    1. Three perspectives on ukuthwasa : the view from traditional beliefs, western psychiatry and transpersonal psychology
      Booi, Beauty Ntombizanele, 2005
      Among the Xhosas, the healing sickness called intwaso is interptreted as a call by the ancestors to become a healer. Transpersonalists also see these initiatory illnesses as spiritual crises, while according to the widely accepted Western psychiatric view, illness is purely perceived in physical and ...
    2. The "pay now argue later" principle in South African Tax Law: its development, operation, comparison to South African civil debt enforcement and consistency with the constitutional right of access to courts
      Elliott, Sarah, 2017-09-20T13:58:39Z, University of Cape Town
      Section 164 of the Tax Administration Act 28 of 2011 (the TAA), previously contained in section 88 of the Income Tax Act 58 of 1962 (the Income Tax Act) and section 36 of the Value-Added Tax (VAT) Act 89 of 1991 (the VAT Act), provides that the payment of tax will not be automatically suspended unti ...
    3. Recontextualising issues in the "NISTCOL" environmental education curriculum module for Primary Diploma by Distance Learning in Zambia
      Moose, John, 2009
      This study investigated the recontextualising of the NISTCOL environmental education curriculum module for the Primary Teachers’ Diploma by Distance Learning (PTDDL) in Zambia. It focused on three case sites, the NISTCOL EE curriculum module for PTDDL and the University of Zambia, the National In-Se ...
    4. Thinking differently about local economic development and governance in secondary cities in South Africa - A conceptual analysis of the possibilities of problem driven iterative adaption (PDIA)
      Du Plooy, Louis Johannes, 2017-09-20T13:58:58Z, University of Cape Town
      Local economic development successes and failures at municipal level, and specifically in secondary cities in South Africa, is deeply influenced by the constitutional imperatives for establishing developmental local government. The local planning, economic development and policy frameworks introduce ...
    5. The ecophysiology of selected coastal dune pioneer plants of the Eastern Cape
      Ripley, B.S., 2002
      Understanding the mechanisms and adaptations that allow only certain species to thrive in the potentially stressful foredune environment requires a knowledge of the basic ecophysiology of foredune species. Ecophysiological measurements were conducted on the foredune pioneer species Arctotheca populi ...
    6. Adding ammonia during Fischer-Tropsch Synthesis: Pathways to the formation of N-containing compounds
      De Vries, Christian, 2017-09-20T13:59:21Z, University of Cape Town
      The Fischer-Tropsch synthesis (FTS) process, better known for its ability to produce synthetic fuel via the hydrogenation of CO, has shown potential to produce valuable chemicals when ammonia is added to the feed. In this work certain aspects of the pathway to the formation of N-containing compounds ...
    7. Measuring the fracture energy of bed breakage using a short impact load cell
      Dube, Thobile Thenjiwe, 2017-09-20T13:59:42Z, University of Cape Town
      Particle fracture is the elementary process that governs comminution. In industrial machines particle breakage occurs mainly through three mechanisms: impact, abrasion and attrition. Of these mechanisms, impact breakage is known to be the most basic form of particle size reduction. Comminution devic ...
    8. Participatory human development in post-apartheid South Africa : a discussion of the 2006/7 Tantyi Youth Empowerment Project
      Kulundu, Injairu M., 2010
      This thesis relates the work of a non-governmental organisation, The Spirals Trust, to discussions on human and participatory development. The focus of the study is one of The Spirals Trust’s projects, the 2006/7 Tantyi Youth Empowerment Project, which is discussed in relation to theoretical materia ...
    9. Collective forgiving.
      Hamilton, Kelly, 2009
      Forgiveness is traditionally understood as a personal change of heart, in which an individual victim of a wrongdoing overcomes her resentment towards the perpetrator of that wrongdoing. Peter Strawson (1974) famously argued that resentment is a personal participant retributive reactive attitude, and ...
    10. The views, adoption and use of e-books by undergraduate students at the University of Namibia
      Leonard, Anna, 2017-09-20T14:02:44Z
      The advancement of Information Communication and Technology, especially the vast development of the Internet, which makes information more widely available to more people, has brought changes to the publishing industry. This technological development includes the introduction of electronic informati ...
    11. Contextualising curriculum through issues-based approaches : a case of eco-schools in Kenya
      Epus, Joash Gregory Odeke, 2009
      This study involved an issues-based approach to curriculum contextualisation in the context of the Eco-Schools programme in Kenya. It adopted a two-phase design using interpretivist and socially critical research orientations. In this study, research is represented as a process which is socially con ...
    12. S"khothane : representation in and influence on, contemporary visual arts practices
      Ngcobo, Nkosikhona Bongamahlubi, 2017-09-20T14:15:30Z
      S’khothane: Representation in, and influence on, contemporary visual arts practices For several years now, S’khothane youth culture has been viewed as a social ill. This view started after it received massive broadcast and print media coverage during the course of 2012. Crews claiming adherence ...
    13. The exploration of the impact of state ownership on Uganda"s New Vision Newspaper"s social role
      Wasswa, John Baptist, 2005
      The global trends of democratisation and privatisation that swept much of the developing world in the 1980s and 1990s led to significant changes in the conceptualisation, organisation and performance of the media. In Africa democratisation attained a new meaning with associated processes of liberali ...